Question

The 'brown heart disease' is caused due to deficiency of

• A. Copper
• B. Molybdenum
• C. Boron
• D. None of the above

Answer 1

The correct option is C Boron

Boron is an important micronutrient for plant. It is required for calcium metabolism, pollen germination, cell differentiation, carbohydrate transport, root nodulation, synthesis of pectin, proteins and nucleic acids, membrane functions, cell elongation and cell differentiation.
Deficiency of boron leads to browning of cauliflower, heart rot or brown heart of sugar beet and turnip, internal cork of apple, top sickness, stunted growth, leaf rosette, decreased nodulation in legumes, small size of fruits and disintegration of softer parts.